diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index 691b42799..b1e852c99 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -2368,7 +2368,6 @@ srs_error_t SrsRtcConnection::negotiate_publish_capability(SrsRequest* req, cons
         track_desc->create_auxiliary_payload(remote_media_desc.find_media_with_encoding_name("red"));
         track_desc->create_auxiliary_payload(remote_media_desc.find_media_with_encoding_name("rtx"));
         track_desc->create_auxiliary_payload(remote_media_desc.find_media_with_encoding_name("ulpfec"));
-        track_desc->create_auxiliary_payload(remote_media_desc.find_media_with_encoding_name("rsfec"));
 
         std::string track_id;
         for (int i = 0; i < remote_media_desc.ssrc_infos_.size(); ++i) {
@@ -2583,12 +2582,6 @@ srs_error_t SrsRtcConnection::negotiate_play_capability(SrsRequest* req, const S
                 srs_freep(track->ulpfec_);
                 track->fec_ssrc_ = 0;
             }
-            // TODO: FIXME: if we support downlink , MUST assign fec_ssrc_
-            // set_rsfec_config;
-            if (true) {
-                srs_freep(track->rsfec_);
-                track->fec_ssrc_ = 0;
-            }
 
             track->set_direction("sendonly");
             sub_relations.insert(make_pair(publish_ssrc, track));
@@ -2648,11 +2641,6 @@ srs_error_t SrsRtcConnection::fetch_source_capability(SrsRequest* req, std::map<
         // set_ulpfec_config;
         srs_freep(track->ulpfec_);
         track->fec_ssrc_ = 0;
-        
-        // TODO: FIXME: if we support downlink , MUST assign fec_ssrc_
-        // set_rsfec_config;
-        srs_freep(track->rsfec_);
-        track->fec_ssrc_ = 0;
 
         track->set_direction("sendonly");
         sub_relations.insert(make_pair(publish_ssrc, track));
@@ -2718,7 +2706,7 @@ srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& l
         SrsAudioPayload* payload = (SrsAudioPayload*)audio_track->media_;
         local_media_desc.payload_types_.push_back(payload->generate_media_payload_type());
 
-        //TODO: FIXME: add red, rtx, ulpfec, rsfec..., payload_types_.
+        //TODO: FIXME: add red, rtx, ulpfec..., payload_types_.
         //local_media_desc.payload_types_.push_back(payload->generate_media_payload_type());
 
         local_media_desc.ssrc_infos_.push_back(SrsSSRCInfo(audio_track->ssrc_, cname, stream_id, audio_track->id_));
@@ -2732,7 +2720,7 @@ srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& l
             local_media_desc.ssrc_infos_.push_back(SrsSSRCInfo(audio_track->rtx_ssrc_, cname, stream_id, audio_track->id_));
         }
 
-        if (audio_track->ulpfec_ || audio_track->rsfec_) {
+        if (audio_track->ulpfec_) {
             std::vector<uint32_t> group_ssrcs;
             group_ssrcs.push_back(audio_track->ssrc_);
             group_ssrcs.push_back(audio_track->fec_ssrc_);
@@ -2787,7 +2775,7 @@ srs_error_t SrsRtcConnection::generate_play_local_sdp(SrsRequest* req, SrsSdp& l
             local_media_desc.ssrc_infos_.push_back(SrsSSRCInfo(track->rtx_ssrc_, cname, stream_id, track->id_));
         }
 
-        if ((track->ulpfec_ || track->rsfec_) && track->fec_ssrc_) {
+        if (track->ulpfec_ && track->fec_ssrc_) {
             std::vector<uint32_t> group_ssrcs;
             group_ssrcs.push_back(track->ssrc_);
             group_ssrcs.push_back(track->fec_ssrc_);
diff --git a/trunk/src/app/srs_app_rtc_source.cpp b/trunk/src/app/srs_app_rtc_source.cpp
index 169ee1024..31d4f6e65 100644
--- a/trunk/src/app/srs_app_rtc_source.cpp
+++ b/trunk/src/app/srs_app_rtc_source.cpp
@@ -1260,7 +1260,6 @@ SrsRtcTrackDescription::SrsRtcTrackDescription()
     red_ = NULL;
     rtx_ = NULL;
     ulpfec_ = NULL;
-    rsfec_ = NULL;
 }
 
 SrsRtcTrackDescription::~SrsRtcTrackDescription()
@@ -1269,7 +1268,6 @@ SrsRtcTrackDescription::~SrsRtcTrackDescription()
     srs_freep(red_);
     srs_freep(rtx_);
     srs_freep(ulpfec_);
-    srs_freep(rsfec_);
 }
 
 bool SrsRtcTrackDescription::has_ssrc(uint32_t ssrc)
@@ -1311,9 +1309,6 @@ void SrsRtcTrackDescription::create_auxiliary_payload(const std::vector<SrsMedia
     } else if (payload.encoding_name_ == "ulpfec") {
         srs_freep(ulpfec_);
         ulpfec_ = new SrsCodecPayload(payload.payload_type_, "ulpfec", payload.clock_rate_);
-    } else if (payload.encoding_name_ == "rsfec") {
-        srs_freep(rsfec_);
-        rsfec_ = new SrsCodecPayload(payload.payload_type_, "rsfec", payload.clock_rate_);
     }
 }
 
@@ -1360,7 +1355,6 @@ SrsRtcTrackDescription* SrsRtcTrackDescription::copy()
     cp->red_ = red_ ? red_->copy():NULL;
     cp->rtx_ = rtx_ ? rtx_->copy():NULL;
     cp->ulpfec_ = ulpfec_ ? ulpfec_->copy():NULL;
-    cp->rsfec_ = rsfec_ ? rsfec_->copy():NULL;
 
     return cp;
 }
diff --git a/trunk/src/app/srs_app_rtc_source.hpp b/trunk/src/app/srs_app_rtc_source.hpp
index 4caf4d7fc..f23125a24 100644
--- a/trunk/src/app/srs_app_rtc_source.hpp
+++ b/trunk/src/app/srs_app_rtc_source.hpp
@@ -342,7 +342,6 @@ public:
     SrsCodecPayload* red_;
     SrsCodecPayload* rtx_;
     SrsCodecPayload* ulpfec_;
-    SrsCodecPayload* rsfec_;
 public:
     SrsRtcTrackDescription();
     virtual ~SrsRtcTrackDescription();
@@ -355,7 +354,7 @@ public:
     void add_rtp_extension_desc(int id, std::string uri);
     void set_direction(std::string direction);
     void set_codec_payload(SrsCodecPayload* payload);
-    // auxiliary paylod include red, rtx, ulpfec, rsfec.
+    // auxiliary paylod include red, rtx, ulpfec.
     void create_auxiliary_payload(const std::vector<SrsMediaPayloadType> payload_types);
     void set_rtx_ssrc(uint32_t ssrc);
     void set_fec_ssrc(uint32_t ssrc);